<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="../js/38.js"></script>
</head>
<body>
<p id="p1"><b>hello</b> world</p>
<br>
<p id="p2">Paragraph 1<p id="p3">Paragraph2</p> </p>
<input type="button" value="click" onclick="useRanges()">
</body>
</html>